Hi all,
Growing a Red Poison Auto flower in organic soil. The plant is just over 4 weeks old and I noticed at the begining of this week that some of the leaves were turning yellow. I had only fed the plant once at this stage about a week prior with an organic fert 10:1:6.
Any ideas what might be up with it? The ph is around 6.7 according to the PH probe.
The plants look a bit droopy but that is only because I had just misted it and the leaves are heavy. The plant is generally quite perky!
@raustin can probably help. I’ve never seen one quite like this.
I’m on my first grow and Red Poison auto is 2 of my 4 plants I’m doing. Mine is only a week old though.
could you fill this support ticket out? it would help… welcome to ILGM
what kind of ph measuring device? pen,prong style,or other?
What type of ph meter are you using post a picture of it please you should know exactly what the ph is
Also filling out the support ticket that @BIGE posted would help us help you
Is that the only plant that is effected?
How close was your light ?
I’m happy to help, but please fill out the support ticket.
@Countryboyjvd1971 is back! Hey, it’s been a while.
With a soil probe at “about 6.7”, I bet you have lockouts…starting with iron & sulphur.
Your light height?
Strain; Sweet Seeds Red Poison Auto
Soil in pots (organic w/ perlite)
System type?
PH of runoff or solution in reservoir? 6.5
What is strength of nutrient mix? EC, or TDS N/A Probe states around 6.5
Indoor
Light system - Mars Epistar 80 400w (https://www.mars-hydro.com/all-product/buy-grow-kits-mars-pro-ii-400w-epistar-80-led-grow-light-plus-grow-tent-2-32-3-for-sale)
Temps; 26 Day, 20 Night
Humidity; 60 Day, 55 Night
Ventilation system; Yes, - 4" Grofan
AC, Humidifier, De-humidifier, NO
Co2; No
Distance from light to plant is 600mm or 24"
I have been misting everyday (sometimes twice a day) and perhaps the light is burning the leaves? Unsure whether LED lights burn leaves…
Hi Countryboy,
yea it is the only plant that is affected. The distance is approx 24" or 600mm from the top of the plant. I actually moved it up about 2" just recently.
I do mist daily so I am unsure whether the water on the leaves and the light has caused it to burn
I am growing some ILGM WWA and they are fine…
Yes, LED light will burn leaves.
done! Thanks for your help! 
I agree, Sulphur
Oh, yeah, I didn’t even see that. Duh! You’ve got a sulphur deficiency.
Those soil probes don’t work good you could have a ph lockout and not know it. You need to know ph going in and coming out. If your ph is lower than 6.7 going in then you have a ph lockout
I was thinking light burn, too, but the height seemed ok.
If this was your first time feeding i would try feeding at 25%strength and see if your plant will have a easier time with that. I messed up my red poison auto with feeding at full strength.
